Contacts of the helix formed by residues 589 - 597 (chain A) in PDB entry 1TAQ


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with PRO 589 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    588A  THR*     1.3    88.4    -      -       -      +
    590A  LEU*     1.3    57.5    +      -       -      +
    592A  GLN*     4.0     3.8    -      -       +      +
    593A  ARG*     2.9    49.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 590 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    459A  LEU*     4.9     0.2    -      -       +      -
    463A  VAL*     4.1    10.3    -      -       +      -
    466A  GLU*     4.9     1.8    -      -       -      +
    538A  LEU*     3.8    32.5    -      -       +      -
    541A  LEU*     3.6    27.1    -      -       +      -
    546A  ILE*     4.1    26.5    -      -       +      -
    588A  THR*     3.2     4.8    +      -       -      +
    589A  PRO*     1.3    77.9    -      -       -      +
    591A  GLY*     1.3    59.4    +      -       -      +
    592A  GLN      3.2     1.8    -      -       -      -
    593A  ARG*     3.0    33.4    +      -       +      +
    594A  ILE*     2.8    42.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 591 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    584A  ILE*     4.1     7.0    -      -       -      +
    585A  PRO*     2.9    39.4    -      -       -      +
    588A  THR*     2.9    14.3    +      -       -      -
    590A  LEU*     1.3    71.5    -      -       -      +
    592A  GLN*     1.3    61.7    +      -       -      +
    594A  ILE*     3.1     4.9    +      -       -      +
    595A  ARG*     3.0    31.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 592 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    585A  PRO      4.6     0.2    -      -       -      +
    586A  VAL*     4.8     0.2    -      -       -      -
    587A  ARG*     3.2    35.6    +      -       -      +
    588A  THR      3.1    15.9    +      -       -      +
    589A  PRO*     4.0     4.5    -      -       +      +
    591A  GLY*     1.3    75.3    -      -       -      +
    593A  ARG*     1.3    62.3    +      -       +      +
    595A  ARG*     3.4    12.4    +      -       -      +
    596A  ARG      3.4    10.9    +      -       -      -
    828A  LEU*     3.2    49.0    -      -       +      +
    831A  LYS*     3.5    34.1    -      -       +      +
    832A  GLU*     3.8     8.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 593 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    455A  TYR*     2.8    34.5    +      -       -      +
    459A  LEU*     4.1    11.4    -      -       +      -
    462A  GLU*     3.1    24.5    +      -       -      -
    463A  VAL*     4.9     0.2    -      -       -      +
    466A  GLU*     2.8    37.2    +      -       -      -
    589A  PRO*     2.9    34.3    +      -       -      +
    590A  LEU*     3.0    46.6    +      -       +      +
    592A  GLN*     1.3    79.8    -      -       +      +
    594A  ILE*     1.3    61.3    +      -       -      +
    596A  ARG*     3.3    13.2    -      -       -      +
    828A  LEU*     5.1     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 594 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    456A  LEU*     5.9     2.8    -      -       +      +
    459A  LEU*     4.5     6.5    -      -       +      -
    541A  LEU*     4.3    15.5    -      -       +      -
    545A  TYR*     3.8    39.0    -      -       +      +
    546A  ILE*     4.2    19.1    -      -       +      -
    549A  LEU*     5.0     2.1    -      -       +      +
    584A  ILE*     4.2    24.2    -      -       +      -
    585A  PRO*     4.7     4.5    -      -       +      -
    590A  LEU*     2.8    40.5    +      -       +      +
    591A  GLY*     3.5     9.0    -      -       -      +
    593A  ARG*     1.3    75.5    -      -       -      +
    595A  ARG*     1.3    58.3    +      -       -      +
    597A  GLY*     3.0    17.7    +      -       -      -
    598A  PHE*     3.5    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 595 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    584A  ILE*     4.5    13.5    -      -       +      -
    586A  VAL*     6.1     7.5    -      -       -      +
    591A  GLY      3.0    19.4    +      -       -      +
    592A  GLN*     4.0    18.4    +      -       -      +
    593A  ARG      3.4     0.6    -      -       -      -
    594A  ILE*     1.3    71.2    -      -       -      +
    596A  ARG*     1.3    64.6    +      -       -      +
    597A  GLY      3.0     2.9    +      -       -      -
    598A  PHE*     3.2    18.5    +      -       -      +
    786A  GLU*     5.5     1.3    -      -       -      -
    827A  TRP*     2.9    87.2    +      -       +      +
    828A  LEU*     3.1    29.2    -      -       -      +
    831A  LYS*     2.7    41.8    +      -       -      +
    832A  GLU*     4.2     8.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 596 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452A  ASP*     3.6    31.1    +      -       -      +
    455A  TYR*     3.5    38.1    -      -       +      +
    592A  GLN      3.4     9.3    +      -       -      +
    593A  ARG*     3.3    13.9    +      -       -      +
    594A  ILE      3.1     0.6    -      -       -      -
    595A  ARG*     1.3    78.6    -      -       -      +
    597A  GLY*     1.3    61.8    +      -       -      +
    598A  PHE      3.3     0.5    +      -       -      +
    599A  ILE*     3.7    12.1    -      -       -      +
    826A  ASP*     3.3    41.8    +      -       -      +
    828A  LEU*     3.9    14.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 597 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451A  LEU*     3.5     5.8    -      -       -      -
    452A  ASP*     2.9    31.5    +      -       -      +
    455A  TYR*     4.0    17.7    -      -       -      -
    456A  LEU*     4.1    13.9    -      -       -      -
    549A  LEU*     6.6     0.2    -      -       -      -
    593A  ARG      3.8     1.8    +      -       -      -
    594A  ILE      3.0    12.9    +      -       -      -
    595A  ARG      3.0     1.8    -      -       -      -
    596A  ARG*     1.3    80.9    -      -       -      +
    598A  PHE*     1.3    62.3    +      -       -      +
    599A  ILE      3.3     0.5    +      -       -      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il